<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<script>
var s = '陈俊';
var reg = /^[\u4e30-\u9fa5]+$/
    console.log(reg.test(s));
</script>
</body>
</html>